Query outputs

Structure of output table 'sim_out'

One table column is created for every stock in the Vensim model. Also delays are interpreted as stocks by translator resources implemented in PySd (Houghton & Siegel, 2015). This means delays are written as results to ‘sim_out’ just like ordinary stocks.

The structure of the output table depends on data inputs (see Fig. 1). In any case one column is created in ‘sim_out’ for every stock (or state variable) in the Vensim model.

If subscripting is involved, one row of type array (PostgreSQl type ‘real[]’) is created for every simulation run. The array index corresponds to the time step of the simulation (see Fig. 4, A).